I made two short scale basses earlier in the year, a 4 string and a 5. They are the same scale length, have the same pickups in the same positions, even have the same strings. The 4 sounds great. Bright, clear, with growl, and always good no matter how the pickups' volume controls are set. The 5 sounds muddy, even though there is clearly some treble present. It's OK with one pickup soloed but still not great. Yes, I've checked. The pickups are wired correctly. They're both 3 piece through necks with veneer stripes between the pieces. The 4 is made of Wenge, and the 5 from Sapele, but with a spalted beech top. The only other material difference - the 4 has a bone nut and steel bridge pieces on brass tail pieces. The 5 has a nut and bridge made from African Blackwood. Some might remember it from the headless tuners thread I did at the time. What is a likely cause of the muddyness? Sapele isn't a bad wood to build from. The 5 string neck is slightly wider of course. Could it be just down to the bone nut and steel bridges? Or have I just been unlucky somewhere with the build.